Vacuum-bottle case



Dec.' 7 192e. 1,609,774

' F. P. ROBERTSON VACUUM BOTTLE CASE v piled Oct. '30 1924 ATTORNEYlPatented Dec.- 7, 19.26. v l 4 i NITE srs FRANK P. nonnnrson, 'oFVALMY, NEVADA.

` VACUUM-Berrie CASE. j

Application mea october so, 1924. serial no. 746.831.

My invention relates to certain new and useful improvements in vacuumibottle cases and it particularly has for" its object to provide meanspreventingliquid getting down in between the glass bottle and the'metalcase. I-Ieretofore in vacuum bottles of the type now commonly found onthe market, the glass bottle is held within a metalli(` casel by meansof a spring cradle. that holds the glass bottle from breaking nythin thecontainer andrkeeps it spaced froii'i 'the walls thereof, a rubbergasket being used at the mouth of the container and bottle to make aseal, with a view of preventing liquid working down, between the glassbottle and the case. This gasket, however, frequently rots.

'E plaster' of Paris, or other suitable material,

that will lill the space between the metal container and the elasticenvelope and effect a permanent seal at the mouth of theglass vessel andthat of the container.

In its more detail nature, the invention resides in those novel detailsof 'construction, combination and arrangementl of parts, all 0f whichwill be first `fully described, then be specifically pointed out in theafppended claims and illustrated in the accompanying drawing, in which:

Figure 1 is a vertical longitudinal section of a vacuum bottlecontainer, the lvacuum bottle being shown in elevation, parts of theelastic envelope also' being shown in elevation, and other parts insection."

Figure 2 is a horizontal section on the line 2 2 of Figure 1.

In the drawing, in which likenumerals indicate like parts in all of thefigures,` 1 is the glass vessel 'or vacuum bottle proper which is of theordinary construction and -lis the container which also is of the ordi`nary constll'nction. In carrying' out my invention. I provide an elasticenvelope 2 for the bottle* 1 which preferably does not extend entirelyto the mouth of the bottle but leaves the neck ot the bottle projecting,from the envelope slightly. .The envelope raap le of any desiredthicknessoi' material and .n.uinufactured in any desired way, itsfunction being to allow for inequalities inthe expansion of the glass ofthe bottle andthat or' :he filling 3.. After supplying the bottle withthe envelope 2, it is assembled in its case and plaster' of Paris orother suitablefilling material is poured in to set and occupy the spacebetween the case 2l and the bottle and the envelope 9.l and to form apermanent 'seal around the mouth ot' the containerand ot the bottle.This liller also serves to prevent the bottle being broken by movementwithin the container. It' the bottle should become broken in any way andrequires renewal, the plaster of` Paris can be broken away and the caseused again, if desired.

From the loregoing description, vtaken in connection with theaccompanying drawing, it 1s thought the complete construction, usesv andadvantages of my invention will `be readily understood by thoseskilled'in the art. to which the invention relates.

l/Vhat Iclaim is:

1. In vacuumbottles, the combination with the glass bottle proper andthe metallic case for cortaining the same, of an elastic envelope forthe bottle and an impervious rigid filler between the envelope and theAcase said filler embedding permanently the elastic envelope and theglass bottle. n

. 2. In vacuum bottles, the combination with the glass:bottle and themetallic case surrounding the same, of an elastic envelope for thebottle and an inelastic filler between the envelope and the case landsealing the space between the case and the mouth of the bottle.

3. In vacuum bottles', the combination with the glass bottle and themetallic casethere Vttor, of a rubber envelope fort-he bottle and aplaster of Paris filler occupying the space between the Wall of thecasey` and the envelope and bottle.

Farini; P." ROBERTSON.

